Space Shuttle - Electron Sock 50, 85/15 SW Merino, Nylon, 50 gr, 200m
The first launch on April 12, 1981, and the final landing on July 21, 2011, NASA's space shuttle fleet.
Columbia, Challenger, Discovery, Atlantis and Endeavour -- flew 135 missions, helped construct the International Space Station and inspired generations.
Electron Sock Base: 85% SW Merino 15% Nylon, 50 grams each, 200 m 218 yds.
See bases for full details on yarn.